Bumper attachment for vehicle suspension springs



' WIG: BUMPER ATTACHMENT FOR VEHICLE SUSPENSION SPRINGS.

APPLECATION FILED NOV.19, 92L I Patented June 13, 1922.

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W. G. COX. BUMPER ATTACHMENT FOR VEHICLE SUSPENSION SPRINGS.

APPLICATION FILED NOV- 19. 192].

' Patented June 13, 1922.

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WILLIAM G, COX, OF CLEVELAND, OHIO, ASSIGNO R, TO COX BRASS MANUFACTURING 7 COMPANY, OF AIQBANY, NEW YORK, A. CORPGR-ATION OF NEW YORK.

BUMPER ATTACHMENT FOR VEHICLE SUSPENSION SPRINGS.

Specification of Letters Patent. Pg 'hgnted June 13, 1922,

Application filed NovcmbcrlB, 1921. Serial No. 516,319.

T all 207mm, it may concern Be it known that l, VVLLIAN G. Cox, a. citizen of the United States, residing at Cleveland, in the county of (luyahoga and State of Ohio, have invented certain new and useful Improvements in Bumper Attachmcnts for Vehicle Suspension Springs, of which the following is a specification.

Briefly, my main object is to provide an improved means of attaching and supporting a buffer or bumper upon the suspension springs of an automobile, especially leaf springs which extend longitudinally of the vehicle and which have curved ends connected with or suspended from shackles, all as hereinafter described and more particularly pointed out and distinctly claimed. In the attached drawing, Fig. 1 is a plan View of the rear end of an automobile, showing a bar bumper attached to the springs according to my invention; Figs. 2 and 3 are rear and side views, respectively, of the same parts; Fig. 4: is a sectional detail on line 44 of 3; and Figs. 5 to 9, inclusive, are separate views of the invention applied to a different form of bumper, Fig. 5 being a plan view of one end of a bumper attached to a spring, and Fig. 6 a side view and section of the same parts on a larger scale. Fig. 7 is a horizontal section on line 77 of 6, and Fig. 8 an elevation and section on line 88 of Fig. 6. Fig. 9 is a perspective view of the anchor plate in its preferred "form.

The invention exemplified in one of its forms in Figs. 1 to 4:, consists of bufi'er or bumper made of two bars 2 and 3, respectively, the impact bar 2 being straight except where curved inwardly and rearwardly at its ends to provide spring arms H, and the rear supporting bar 3 being arched and bolted to arms 4-. One of these bars, bar 3 in this instance, is further provided with horizontal arms or extremities 5 5 projecting in opposite directions to permit attachment of this buffer or bumper to the curved ends 6 of the leaf-springs 7 of an automobile. Arms 5 are flat and straight and when attached to the curved springs have linear engagement with the outer curved surface of the-ends 6, and attachment is eliected by a curved anchor plate 8 seated within the inner curved or concaved end of the main leaf of each spring. Anchor plate 8 is secured to arm 5 by bolts and nuts 9-9, and the lower end of the plate is preferably curved to conform to the curvature of the spring and extends downward to the eye 11 at the end of the spring, against which eye it bears and rests. Thus. the weight of the bumper and .all bumper shocks are transmitted directly to and through the-curved plate to the end eye of the spring where connected by shackle Anchor plate 8is also preferably formed with spaced side flanges 14:, see Fig. 9 to seat and engage arm 5' of the bumper opposite each side edge of spring 7, see Fig. 7, thus in a sense confining the spring loosely or with free play between the arm and the plate and preventing excess tightening of the bolts and injury to the spring in making attachments. The tapered extension or toe 15 of plate 8 serves to anchor and hold the plate and bumper in the desired relation and elevation as predetermined, the bolts merely functioning to unite the parts together without undue or excess tightening of the bolts or too tight a clamping of the spring between the parts. I

In Figs. 5 to 9, the bumper arm 5 is a separate spring part fixed adjustably upon the rear bar of a loop-shaped bumper 16, but the invention is not limited to a particular kind of arm or bumper, but is applicable to all kinds of bumpers comprising a supporting bar or supporting arms adapted to be attached transversely to theouter flat sides of suspension springs substantially as herein shown and described.

What I claim, is

1. A buffer or bumper having a supporting member adapted to be attached to the suspension springs of an automobile, and anchoring devicesv seated in rest position within the springs against the shackle portions thereof and connected to said supporting member.

2. A buffer or bumper, comprising a bar, and separate plates adapted to secure said bar to the curved shackle ends of a pair of concaved side of said curved ends and .to

abut the shackle eye and adapted to function as rests. I

3, A automobile bufler or bumper, comprising a supportingmember an anchor plate having a curved supporting extension conforming to and adapted to seat Within the concaved side of the curved end of a vehicle spring, and means adapted to unite said member and plate together with the spring there-between. r

4-. An automobile buffer or bumper, comprising a supporting; member; an anchor plate having an extended, portion adapted to seat Within the eoncaved side of the scroll. end in rest position against the eye of a Vehicle suspension spring means at each side edge of said spring adapted to space said plate apart from said member to freely eonfine and receive the scroll of the spring, and

means adapted to detachably unite said parts together. i

5. An automobile buffer or. bumper, comprising a supporting member adapted to be fastened transversely to the curved ends of a pair of suspension springs having eyes for shackles, a flanged plate seated astride each spring in rest engagement with said eyes, and bolts and nuts securing said member rigidly to said flanged plates.

6. A vehicle suspension spring having a curved end and an eye for a shackle bolt, in combinationwith a bun'iper, and an attaching member for said bumper seated Within the concavedside of said curved end in thrust position against said eye.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM G. COX.

Vl itnesses GEo. E. KRIGKER, DOROTHY M; Mosnn. 

